Vulnerability-Lookup

Vulnerability from bitnami_vulndb

Published

2024-03-06 10:58

Modified

2025-05-20 10:02

Summary

MITM modification of request bodies in MinIO

Details

MinIO is an open-source high performance object storage service and it is API compatible with Amazon S3 cloud storage service. In MinIO before version RELEASE.2021-03-17T02-33-02Z, there is a vulnerability which enables MITM modification of request bodies that are meant to have integrity guaranteed by chunk signatures. In a PUT request using aws-chunked encoding, MinIO ordinarily verifies signatures at the end of a chunk. This check can be skipped if the client sends a false chunk size that is much greater than the actual data sent: the server accepts and completes the request without ever reaching the end of the chunk + thereby without ever checking the chunk signature. This is fixed in version RELEASE.2021-03-17T02-33-02Z. As a workaround one can avoid using "aws-chunked" encoding-based chunk signature upload requests instead use TLS. MinIO SDKs automatically disable chunked encoding signature when the server endpoint is configured with TLS.

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "minio",
        "purl": "pkg:bitnami/minio"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2021.03.17"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "severity": [
        {
          "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
          "type": "CVSS_V3"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-21390"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:minio:minio:*:*:*:*:*:*:*:*"
    ],
    "severity": "Medium"
  },
  "details": "MinIO is an open-source high performance object storage service and it is API compatible with Amazon S3 cloud storage service. In MinIO before version RELEASE.2021-03-17T02-33-02Z, there is a vulnerability which enables MITM modification of request bodies that are meant to have integrity guaranteed by chunk signatures. In a PUT request using aws-chunked encoding, MinIO ordinarily verifies signatures at the end of a chunk. This check can be skipped if the client sends a false chunk size that is much greater than the actual data sent: the server accepts and completes the request without ever reaching the end of the chunk + thereby without ever checking the chunk signature. This is fixed in version RELEASE.2021-03-17T02-33-02Z. As a workaround one can avoid using \"aws-chunked\" encoding-based chunk signature upload requests instead use TLS. MinIO SDKs automatically disable chunked encoding signature when the server endpoint is configured with TLS.",
  "id": "BIT-minio-2021-21390",
  "modified": "2025-05-20T10:02:07.006Z",
  "published": "2024-03-06T10:58:02.168Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/minio/minio/commit/e197800f9055489415b53cf137e31e194aaf7ba0"
    },
    {
      "type": "WEB",
      "url": "https://github.com/minio/minio/pull/11801"
    },
    {
      "type": "WEB",
      "url": "https://github.com/minio/minio/security/advisories/GHSA-xr7r-7gpj-5pgp"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-21390"
    }
  ],
  "schema_version": "1.5.0",
  "summary": "MITM modification of request bodies in MinIO"
}

CVE-2021-21390 (GCVE-0-2021-21390)

Vulnerability from cvelistv5 – Published: 2021-03-19 16:00 – Updated: 2024-08-03 18:09

Title

MITM modification of request bodies in MinIO

Summary

Severity ?

6.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

CWE

CWE-924 - Improper Enforcement of Message Integrity During Transmission in a Communication Channel

Assigner

GitHub_M

References

URL

Tags

	https://github.com/minio/minio/security/advisorie…	x_refsource_CONFIRM
	https://github.com/minio/minio/pull/11801	x_refsource_MISC
	https://github.com/minio/minio/commit/e197800f905…	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	minio	minio	Affected: < RELEASE.2021-03-17T02-33-02Z

Show details on NVD website

JSON

To clipboard

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        "providerMetadata": {
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          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        "references": [
          {
            "tags": [
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              "x_transferred"
            ],
            "url": "https://github.com/minio/minio/security/advisories/GHSA-xr7r-7gpj-5pgp"
          },
          {
            "tags": [
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            ],
            "url": "https://github.com/minio/minio/pull/11801"
          },
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              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/minio/minio/commit/e197800f9055489415b53cf137e31e194aaf7ba0"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "minio",
          "vendor": "minio",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c RELEASE.2021-03-17T02-33-02Z"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "MinIO is an open-source high performance object storage service and it is API compatible with Amazon S3 cloud storage service. In MinIO before version RELEASE.2021-03-17T02-33-02Z, there is a vulnerability which enables MITM modification of request bodies that are meant to have integrity guaranteed by chunk signatures. In a PUT request using aws-chunked encoding, MinIO ordinarily verifies signatures at the end of a chunk. This check can be skipped if the client sends a false chunk size that is much greater than the actual data sent: the server accepts and completes the request without ever reaching the end of the chunk + thereby without ever checking the chunk signature. This is fixed in version RELEASE.2021-03-17T02-33-02Z. As a workaround one can avoid using \"aws-chunked\" encoding-based chunk signature upload requests instead use TLS. MinIO SDKs automatically disable chunked encoding signature when the server endpoint is configured with TLS."
        }
      ],
      "metrics": [
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            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N",
            "version": "3.1"
          }
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      ],
      "problemTypes": [
        {
          "descriptions": [
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            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-03-19T16:00:17",
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      },
      "references": [
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        },
        {
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          ],
          "url": "https://github.com/minio/minio/commit/e197800f9055489415b53cf137e31e194aaf7ba0"
        }
      ],
      "source": {
        "advisory": "GHSA-xr7r-7gpj-5pgp",
        "discovery": "UNKNOWN"
      },
      "title": "MITM modification of request bodies in MinIO",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security-advisories@github.com",
          "ID": "CVE-2021-21390",
          "STATE": "PUBLIC",
          "TITLE": "MITM modification of request bodies in MinIO"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "minio",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "\u003c RELEASE.2021-03-17T02-33-02Z"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "minio"
              }
            ]
          }
        },
        "data_format": "MITRE",
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        "data_version": "4.0",
        "description": {
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              "lang": "eng",
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            },
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}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

Vulnerability from bitnami_vulndb

CVE-2021-21390 (GCVE-0-2021-21390)

Tags

Sightings

Nomenclature